Surface plasmon enhancement in gold nanoparticles in the presence of an optical gain medium: an analysis

被引：18

作者：

Sathiyamoorthy, K. ^{[1
]}

Sreekanth, K. V. ^{[1
]}

Sidharthan, R. ^{[1
]}

Murukeshan, V. M. ^{[1
]}

Xing, Bengang ^{[2
]}

机构：

[1] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore

[2] Nanyang Technol Univ, Div Chem & Biol Chem, Sch Phys & Math Sci, Singapore 637371, Singapore

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2011年 / 44卷 / 42期

关键词：

ASSISTED PROPAGATION; WAVE-GUIDES; TRANSMISSION; SPECTROSCOPY; LITHOGRAPHY; POLARITONS; SCATTERING; PARTICLE; ENERGY;

D O I：

10.1088/0022-3727/44/42/425102

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The localized surface plasmon (LSP) enhancement in a gold nanoparticle is demonstrated in this paper. The enhancement of LSP is influenced by both size and the dielectric gain medium surrounding the nanoparticles. The nanoparticle is found to induce plasmonic enhancement of varying degrees depending on its size, and it is inferred that a gold nanoparticle of size 60 nm exhibits the maximum LSP for 532 nm excitation. Singularity due to cancellation of SP loss by an infinite gain medium and LSP enhancement are studied using a pump-probe Rayleigh scattering experiment. Gold nanoparticles of average size 60 nm exhibit the lowest threshold power to observe Rayleigh scattering. Furthermore, compared with the bare nanoparticles, a 12.5 fold enhancement of LSP is observed when the nanoparticle of average size 60 nm is kept in the gain medium.

引用

页数：9

共 29 条

[1] Extraordinary transmission and giant magneto-optical transverse Kerr effect in plasmonic nanostructured films [J].

Belotelov, V. I. ;

Bykov, D. A. ;

Doskolovich, L. L. ;

Kalish, A. N. ;

Zvezdin, A. K. .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2009, 26 (08) :1594-1598

[2] Computational study of fluorescence scattering by silver nanoparticles [J].

Chowdhury, Mustafa H. ;

Gray, Stephen K. ;

Pond, James ;

Geddes, Chris D. ;

Aslan, Kadir ;

Lakowicz, Joseph R. .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2007, 24 (09) :2259-2267

[3]

Edwards D.F., 1985, Handbook of optical constants of solids

[4]

FUTAMATA M, 2005, P SOC PHOTO-OPT INS, V5928, P67

[5] Nanoscale optical biosensors based on localized surface plasmon resonance spectroscopy [J].

Haes, AJ ;

Van Duyne, RP .

PLASMONICS: METALLIC NANOSTRUCTURES AND THEIR OPTICAL PROPERTIES, 2003, 5221 :47-58

[6] Bottom-up Design of Hybrid Polymer Nanoassemblies Elucidates Plasmon-Enhanced Second Harmonic Generation from Nonlinear Optical Dyes [J].

Ishifuji, Miki ;

Mitsuishi, Masaya ;

Miyashita, Tokuji .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (12) :4418-4424

[7] Generalized surface plasmon resonance sensors using metamaterials and negative index materials [J].

Ishimaru, A. ;

Jaruwatanadilok, S. ;

Kuga, Y. .

PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER, 2005, 51 :139-152

[8] Calculated absorption and scattering properties of gold nanoparticles of different size, shape, and composition: Applications in biological imaging and biomedicine [J].

Jain, PK ;

Lee, KS ;

El-Sayed, IH ;

El-Sayed, MA .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (14) :7238-7248

[9] Enhanced solid-phase immunoassay using gold nanoshells: effect of nanoparticle optical properties [J].

Khlebtsov, Boris ;

Khlebtsov, Nikolai .

NANOTECHNOLOGY, 2008, 19 (43)

[10] Exciton annihilation in a polyfluorene: Low threshold for singlet-singlet annihilation and the absence of singlet-triplet annihilation [J].

King, S. M. ;

Dai, D. ;

Rothe, C. ;

Monkman, A. P. .

PHYSICAL REVIEW B, 2007, 76 (08)

← 1 2 3 →